https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83388
--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> --- On Tue, 12 Dec 2017, jakub at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83388 > > --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- > Compilation with -m32 and linking without? I'd expect that to fail more > miserably. Linking without -fsanitize=null. > That said, what we are doing with the sanitizers is similar to what we are > doing with debug stmts, if compilation is with -flto -g and linking without > -g, > then > debug stmts are dropped. Likewise, IFN_*SAN* is dropped from the IL if > linking > without corresponding -fsanitize= options. Ah. So the error is about cgraph input not finding the corresponding GIMPLE call stmt that are referenced form a cgraph edge we input (e->call_stmt). This might be the case then when we drop those calls? So maybe we need some adjustment here. > Then there are builtins lowered > earlier, those are just library calls, so it is user's responsibility to make > sure the corresponding library is linked, otherwise normal linking errors > should be reported. Yes, I think that part works. We probably run into the above failure to materialize the cgraph.
